Kirby did not factor into the decision in Friday's 5-4 loss to the Guardians, allowing two runs on six hits and no walks with six strikeouts over seven innings.

Kirby cruised through five scoreless innings before giving up solo homers in the sixth and seventh, throwing 64 of 98 pitches for strikes while generating 10 whiffs. It was the 27-year-old's sixth time posting a quality start with two earned runs or fewer in his last seven outings, the lone blemish being a seven-run blowup Aug. 17. He'll take a 3.94 ERA, 1.16 WHIP and 103:26 K:BB across 102.2 innings into a road matchup with the Rays next week.

Tolle did not factor into Friday's decision against the Pirates, allowing two runs on three hits and two walks while striking out eight across 5.1 innings.

Though Tolle was facing a Pirates team that entered Friday with the least amount of runs scored in the majors (484), he was also against ace Paul Skenes, so a win was going to be hard to collect in the former's major-league debut. Even so, Tolle rose to the occasion, generating 14 whiffs on 84 pitches (53 strikes) with six of his eight punchouts coming on four-seam fastballs. The 22-year-old southpaw kept the Pirates off the board through the first five innings, but he was pulled from the game in the sixth after allowing two baserunners, both of whom were brought home on a Tommy Pham double. With Richard Fitts (elbow) on the 15-day IL and Walker Buehler being released, Tolle figures to be a part of the Red Sox's rotation for the rest of the regular season. He's slated to start against the Guardians at home next week, when he'll look to earn the first win of his major-league career.

Athletics manager Mark Kotsay said Barnett will start Saturday's game against the Rangers in Sacramento, Jessica Kleinschmidt of Baseball America reports.

Barnett has spent most of the 2025 season with Triple-A Las Vegas, where he accrued a 5.83 ERA, 1.56 WHIP and 123:60 K:BB across 117.1 innings. After being called up from Triple-A on Tuesday, Barnett went unused out of the bullpen over the last few days and will now step into the rotation spot vacated by lefty Jacob Lopez (elbow), who was placed on the IL earlier this week. Though Barnett is regarded as one of the Athletics' top pitching prospects, his poor numbers in the Pacific Coast League make it difficult to depend on him as a streaming option in his MLB debut, especially while pitching in a hitter-friendly venue in Sacramento.

Cameron isn't listed as a starting pitcher in any game of Kansas City's three-game set against the Tigers that begins Friday, Jackson Stone of MLB.com reports.

Cameron's normal trip through the rotation would have lined him up for a start Saturday, but Stephen Kolek will take the mound instead. Michael Wacha will close out the series Sunday. It's unclear when Cameron's next start will come, but it looks as though the Royals will limit his workload during the closing weeks of the regular season. Cameron has thrown 140.2 innings this season across Triple-A and the Majors, and his previous career high was 122.2 innings, which he set in 2024.

Lopez (shoulder) will make what's expected to be his final rehab start Sunday at Triple-A St. Paul, Bobby Nightengale of The Minnesota Star Tribune reports.

Lopez struck out five and allowed three earned runs over four innings in his second rehab outing Tuesday with St. Paul. He threw 68 pitches in that start and will get stretched out a bit more before returning from the 60-day injured list and likely slotting into the Twins rotation during next weekend's series in Kansas City. Lopez has been shelved since early June due to a Grade 2 teres major strain.

Wacha (paternity) is still scheduled to start Sunday's game against the Tigers, Jaylon T. Thompson of The Kansas City Star reports.

Despite being placed on the paternity list Friday, Wacha will make his regularly scheduled start Sunday. The 34-year-old has been excellent lately, logging a 4-1 record and a 2.45 ERA across his last eight starts, spanning 47.2 innings. He's struck out just 29 batters during that stretch, though.

Kolek is slated to start Saturday's game against the Tigers in Kansas City, Jaylon T. Thompson of The Kansas City Star reports.

Kolek was recalled from Triple-A Omaha on Friday after Michael Wacha (personal) was placed on the paternity list in a corresponding move. Though Wacha is on track to start Sunday's series finale, the Royals will temporarily clear a spot in the rotation for Kolek in order to give rookie Noah Cameron some additional rest between starts. Saturday's outing will mark the Royals debut for Kolek, whom Kansas City acquired from the Padres at the trade deadline. After the trade, Kolek reported to Omaha and logged a 6.63 ERA in 19 innings over five starts before receiving a call-up.

The Royals placed Wacha on the paternity list Friday.

Wacha can miss a maximum of three days, according to MLB rules, which could put his scheduled Sunday start in jeopardy. The Royals recalled Stephen Kolek, who's served exclusively as a starter since being acquired by the Royals near the trade deadline, from Triple-A Omaha in a corresponding move. Kansas City hasn't named a starter for Saturday's contest, which is Noah Cameron's normally scheduled turn through the rotation.

The Royals recalled Kolek from Triple-A Omaha on Friday.

Kolek was traded from San Diego to Kansas City near the trade deadline and immediately reported to Omaha. He made five starts with Omaha, posting a 6.63 ERA and a 20:10 K:BB across 19 innings. Kolek steps onto the active roster in place of Michael Wacha, who was placed on the paternity list. Per Anne Rogers of MLB.com the Royals haven't announced a starter for Saturday's game and have Wacha listed as Sunday's starter. Assuming Wacha will be back in time for his scheduled outing, Kolek could pitch in Saturday's game, potentially after Noah Cameron, although Kolek could also get that start if the Royals want to manage Cameron's workload.

The Red Sox selected Tolle's contract from Triple-A Worcester on Friday, Chris Henrique of the Boston Sports Journal reports.

Tolle is set to make his major-league debut Friday at Fenway Park against the visiting Pirates. The left-hander earned his first look in the big leagues after collecting a 3.04 ERA, 0.99 WHIP and 133:23 K:BB over 91.2 innings covering three levels in the minors. Tolle should remain in the Boston rotation for the rest of the season if he pitches well.